MX151560A - IMPROVEMENTS TO A HIGH-SENSITIVITY DEMODULATION SYSTEM FOR F.M. OF TV - Google Patents

IMPROVEMENTS TO A HIGH-SENSITIVITY DEMODULATION SYSTEM FOR F.M. OF TV

Info

Publication number
MX151560A
MX151560A MX194204A MX19420482A MX151560A MX 151560 A MX151560 A MX 151560A MX 194204 A MX194204 A MX 194204A MX 19420482 A MX19420482 A MX 19420482A MX 151560 A MX151560 A MX 151560A
Authority
MX
Mexico
Prior art keywords
demodulation system
sensitivity demodulation
sensitivity
demodulation
Prior art date
Application number
MX194204A
Other languages
Spanish (es)
Inventor
Tomozo Ohta
Original Assignee
Oki Electric Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oki Electric Ind Co Ltd filed Critical Oki Electric Ind Co Ltd
Publication of MX151560A publication Critical patent/MX151560A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/005—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling a bandpass filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
    • H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
MX194204A 1981-08-31 1981-08-31 IMPROVEMENTS TO A HIGH-SENSITIVITY DEMODULATION SYSTEM FOR F.M. OF TV MX151560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1981/000207 WO1983000974A1 (en) 1981-08-31 1981-08-31 High-sensitivity fm demodulating system

Publications (1)

Publication Number Publication Date
MX151560A true MX151560A (en) 1984-12-13

Family

ID=13734292

Family Applications (1)

Application Number Title Priority Date Filing Date
MX194204A MX151560A (en) 1981-08-31 1981-08-31 IMPROVEMENTS TO A HIGH-SENSITIVITY DEMODULATION SYSTEM FOR F.M. OF TV

Country Status (8)

Country Link
US (1) US4527187A (en)
EP (1) EP0086839B1 (en)
JP (1) JPS6250030B1 (en)
AU (1) AU537038B2 (en)
CA (1) CA1189958A (en)
DE (1) DE3175690D1 (en)
MX (1) MX151560A (en)
WO (1) WO1983000974A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565445B1 (en) * 1984-06-04 1986-10-10 France Etat FREQUENCY DEMODULATOR AND TELEVISION TRANSMISSION RECEIVER WITH TIME MULTIPLEXING INCLUDING APPLICATION
NL8800849A (en) * 1988-04-05 1989-11-01 Philips Nv RECIPIENT AND DEMODULATION CIRCUIT SUITABLE FOR THE RECIPIENT.
US5109532A (en) * 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
FR2659508A1 (en) * 1990-03-09 1991-09-13 Portenseigne Radiotechnique THRESHOLD LOWERING FREQUENCY DEMODULATOR.
WO1992007422A1 (en) * 1990-10-10 1992-04-30 Motorola, Inc. Active filter circuit
TW269759B (en) * 1994-09-30 1996-02-01 Philips Electronics Nv FM demodulator with threshold extension and receiver comprising such an FM demodulator
DE19522886A1 (en) * 1995-06-23 1997-01-02 Thomson Brandt Gmbh Video receiver with circuit for improving image quality
DE19546406C1 (en) * 1995-12-12 1997-05-22 Becker Gmbh Digital IF filter circuit for FM receiver
DE19622656C1 (en) * 1996-06-05 1997-10-16 Siemens Ag Filter circuit arrangement with frequency regulation
JP2880955B2 (en) * 1996-07-11 1999-04-12 埼玉日本電気株式会社 Mobile phone equipment
JP2000307458A (en) * 1999-04-21 2000-11-02 Nec Corp Tuner ic incorporating pll
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917572A (en) * 1954-10-04 1959-12-15 Westinghouse Electric Corp Automatically controlled bandwidth amplifier
GB2059223B (en) * 1979-08-06 1983-11-23 Matsushita Electric Ind Co Ltd Television signal receiving apparatus
JPS5684005A (en) * 1979-12-12 1981-07-09 Sony Corp Fm demodulator

Also Published As

Publication number Publication date
DE3175690D1 (en) 1987-01-15
WO1983000974A1 (en) 1983-03-17
JPS6250030B1 (en) 1987-10-22
EP0086839A1 (en) 1983-08-31
AU537038B2 (en) 1984-05-31
EP0086839B1 (en) 1986-12-03
AU7537281A (en) 1983-03-28
CA1189958A (en) 1985-07-02
US4527187A (en) 1985-07-02
EP0086839A4 (en) 1984-06-13

Similar Documents

Publication Publication Date Title
MX151558A (en) IMPROVEMENTS TO THE HIGH-SENSITIVITY DEMODULATION SYSTEM OF F.M. OF TV
IT1159086B (en) TUNING SYSTEM FOR A TELEVISION RECEIVER
BR8207237A (en) "SIGNAL SYNCHRONIZATION SYSTEM"
BR7902160A (en) VIDEO SIGNAL PROCESSING SYSTEM
ES512305A0 (en) DIGITAL SYSTEM FOR VISUAL REPRESENTATION OF IMAGES.
ES512304A0 (en) DIGITAL IMAGE REPRESENTATION SYSTEM.
DE3581173D1 (en) VIDEO IMAGE DETECTION SYSTEM.
IT1133858B (en) VIDEO DISK SYSTEM
ES512306A0 (en) VIDEO IMAGE REPRESENTATION SYSTEM.
MX151560A (en) IMPROVEMENTS TO A HIGH-SENSITIVITY DEMODULATION SYSTEM FOR F.M. OF TV
ES510514A0 (en) "SYSTEM OF RECEPTION OF SIGNALS HYPERFREQUENCES OF ORTOGONAL POLARIZATIONS".
MX147755A (en) IMPROVEMENTS TO THE CODE SYSTEM FOR SUBSCRIPTION TELEVISION
MX153689A (en) IMPROVEMENTS TO THE METAL DETECTION SYSTEM
GB2091874B (en) Intruder detection system
BR8201403A (en) STEERING SYSTEM
BR8201005A (en) AUDIO SYSTEM
YU166482A (en) Improved technology for demodulating split detector signal
IT8024147A0 (en) TELEVISION SIGNAL PROCESSING SYSTEM.
IT8047794A0 (en) X-RAY TELEVISION SYSTEM
GB2092854B (en) Focus detecting system
ES515209A0 (en) "IMPROVEMENTS INTRODUCED IN A TELEVISION IMAGE PRESENTATION SYSTEM".
IT8267526A0 (en) HIGH RESOLUTION RADAR SYSTEM
IT1151380B (en) SYNCHRONIZATION SYSTEM OF THE REFERENCE SIGNALS OF THE PARAMETERS OF A TWO-RESPONSE AIRCRAFT
GB2044420B (en) Condensate recovery system
IT1137810B (en) SHADOW TELEVISION SIGNAL DETECTOR SYSTEM